WHEN you think of radioactive material, one would immediately associate it with a green glow. Take the opening sequence of The Simpsons animated series, for example, where the Homer Simpson ...

Westclox clocks, with their glow-in-the-dark faces ... Workers continued to be exposed to radioactive material until the plant was shut down in 1978. Argonne National Laboratory in Lemont ...

He said it was becoming common to see people coming in and discreetly pointing black lights at ornaments in the hope of seeing a sci-fi radioactive glow. "I am more than happy for you to scan ...